(4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one

Base Information

Chemical Name:(4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one
CAS No.:69172-11-8
Molecular Formula:C₂₃H₂₇BrO₄
Molecular Weight:447.369
Hs Code.:

Synonyms:(4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one

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Chemical Property of (4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one

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Technology Process of (4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one

There total 4 articles about (4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

: (E)-7-(4-Benzyloxy-2,6-dimethyl-phenyl)-3-hydroxy-3-methyl-hept-4-enoic acid

: 5-[3-(4-Benzyloxy-2,6-dimethyl-phenyl)-1-bromo-propyl]-4-hydroxy-4-methyl-dihydro-furan-2-one

: 69172-11-8
(4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one

Guidance literature:: With bromine; sodium hydrogencarbonate; In methanol; at -70 ℃; for 1h;
DOI:10.1248/cpb.28.1509

Reference yield:

: 60995-71-3
3-(p-benzyloxy-o,o'-dimethylphenyl)propionaldehyde

: 69172-11-8
(4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one

Guidance literature:: Multi-step reaction with 4 steps

1: 50percent NaH / tetrahydrofuran / 2 h / -20 °C

2: 71.2 percent / Zn / benzene / 1 h / Heating

3: aq. NaOH / methanol

4: NaHCO₃, Br₂ / methanol / 1 h / -70 °C

With sodium hydroxide; bromine; sodium hydride; sodium hydrogencarbonate; zinc; In tetrahydrofuran; methanol; benzene;
DOI:10.1248/cpb.28.1509

Reference yield:

: 69171-89-7
6-(p-benzyloxy-o,o'-dimethylphenyl)-trans-3-hexen-2-one

: 69172-11-8
(4R,5S,6S)-6-[2-(4-Benzyloxy-2,6-dimethyl-phenyl)-ethyl]-5-bromo-4-hydroxy-4-methyl-tetrahydro-pyran-2-one

Guidance literature:: Multi-step reaction with 3 steps

1: 71.2 percent / Zn / benzene / 1 h / Heating

2: aq. NaOH / methanol

3: NaHCO₃, Br₂ / methanol / 1 h / -70 °C

With sodium hydroxide; bromine; sodium hydrogencarbonate; zinc; In methanol; benzene;
DOI:10.1248/cpb.28.1509